HELP I SUBMITTED 30 POINTS
Find calculated displacement.
Velocity - 70 m/s
Time - 4s
Initial position- 0m
Final Position- 50m
Calculated Displacement(m) - ?
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Let's Calculate the displacement :
we know that displacement is the shortest distance between two points (i.e final position - initial position). so here displacement :
50 - 0 = 50mWhat is the final velocity of a ball thrown downward at 10 m/s after 2 seconds?
We have that the final velocity of a ball thrown downward at 10 m/s after 2 seconds is
V=29.6m/s
From the question we are told
What is the final velocity of a ball thrown downward at 10 m/s after 2 seconds?
Where
a ball thrown downward at 10 m/safter 2 secondsGenerally the Newton's equation for Motion is mathematically given as
[tex]V=U+at\\\\V=U+gt\\\\V=10+9.8*2\\\\V=29.6m/s[/tex]
Therefore
the final velocity of a ball thrown downward at 10 m/s after 2 seconds is
V=29.6m/s
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newton’s law of gravity says the gravitational force between two objects is proportional to:
Answer:
Mass of the object or earth
A man is pulling a cart to the left with a force of 60 N. A second man is pushing the cart to the left with a force of 30 N. There is a force of 90 N acting on the cart in the opposite direction. What is the net force acting on the cart AND how can the motion of the cart be described?
This cart would move with constant velocity or be at rest because the net force is equal to zero (0), which means the three (3) forces acting on the cart opposes each other.
Let the first force be A. Let the second force be B.Let the third force be C.Given the following data:
Force A = 60 Newton, to the left.Force B = 2 Newton, to the left.Force C = 90 Newton, to the right.To find the net force acting on the cart:
A net force can be defined as the vector sum of all the forces that are acting on a physical object or body.
This ultimately implies that, a net force is a single (one) force that substitutes the effect of all the forces acting on a physical object or body.
Mathematically, net force is given by the following:
[tex]Net \;force = F_1 + F_2 + F_3 + F_4 + .....F_n[/tex]
Where:
F represents each force.[tex]Net\; force = 60 + 30 + (-90)\\\\Net\; force = 90 - 90[/tex]
Net force = 0 Newton
Based on Newton's First Law of Motion, this cart would move with constant velocity or be at rest because the net force is equal to zero (0), which means the three (3) forces acting on the cart opposes each other.
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The table contains the planets in our solar system in order of their average distance from the Sun and their corresponding diameters. The first step in creating a model of the solar system is to scale these large diameters into smaller, more manageable numbers. Eventually, we’ll represent these numbers using circles drawn on paper. MercuryVenusEarthMarsJupiterSaturnUranusNeptune Diameter (km)487912,10412,7566792142,984120,53651,11849,528 Scaled Diameter (cm) 3.51.9 The ratio between Earth’s actual diameter and its scaled diameter can be used to find the scaled diameter of the other planets. Earth’s diameter of 12,756 kilometers is scaled to 3.5 centimeters as shown in the table. Now let’s find the scaled diameter of Mars as an example. Using the calculations shown, Mars’s diameter of 6,792 would be scaled to 1.9 centimeters. d × 12,756 = 6,792 × 3.5 d = 1.9 cm Use this same process to complete the table with the scaled diameters of the other planets. Round each answer to the tenths place. If you need additional math help, visit the Proportions section of the Math Review.
The scaled diameters of the missing planets are listed below:
Mercury 1.4 cm
Venus 3.3 cm
Mars 1.9 cm
Jupiter 39.2 cm
Saturn 33.1 cm
Uranus 14.0 cm
Neptune 13.6 cm
How to determine the scaled diameters of a planet
In this question we must use conversion factor to calculate the scaled diameters by means of the following direct relationship:
d = k · D (1)
Where:
D - Real diameter, in kilometers.d - Scaled diameter, in centimeters.k - Conversion factor, in centimeters per kilometer.The conversion factor is found by using the real and scaled diameter of the Earth:
k = 3.5 cm/12,756 km
k = 7/25512 cm/km
Then, we determine the scaled diameters of the rest of planets:
Mercury 1.4 cm
Venus 3.3 cm
Mars 1.9 cm
Jupiter 39.2 cm
Saturn 33.1 cm
Uranus 14.0 cm
Neptune 13.6 cm
Remark
The statement reports a table with numerous mistakes, the correct table is shown below:
Planet Diameter (km) Scaled Diameter (cm)
Mercury 4,879
Venus 12,104
Earth 12,756 3.5
Mars 6,792
Jupiter 142,984
Saturn 120,536
Uranus 51,118
Neptune 49,528
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que influencia tienen los rayos x en la actualidad?
A ___________ will help you plan the rest of your life around this fitness priority. A. coach B. fitness goal C. fitness evaluation D. weekly plan
Answer:
B. fitness goal I believe. please like this, I need points. ty!
Explanation:
NEED HELP!!! 11 POINTS!!!
Based on Newton’s third law of motion, will a tennis ball go farther if it hits a tennis racquet that is still or one that is in motion?
OPTIONS:
A.
One that is still because it will absorb all of the force of the ball.
B.
One that is still because that will have a greater impact on the trajectory.
C.
One that is in motion because both the ball and the racquet will contribute momentum.
D.
One that is in motion because the racquet’s force will cancel the ball’s force out.
Answer:
c
Explanation:
because if a tennis ball hit a tennis racket still it would not go anywhere. with the tennis ball hitting the moving racket it will go further
One that is in motion because both the ball and the racquet will contribute momentum.
Thus, option (c) is correct.
Newton's third law of motion states that for every action, there is an equal and opposite reaction.
When the tennis ball hits a tennis racquet in motion, both the ball and the racquet will exert forces on each other in opposite directions.
This interaction will result in a transfer of momentum from the racquet to the ball and vice versa, potentially giving the ball a greater momentum and therefore potentially causing it to go farther.
Thus, option (c) is correct.
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What is the final monetum of the artist clay system immediately after the collision
Answer:
the total mass of the objects multiplied by their velocity.
What is 4.33 and 2.16?
1)Why can't we use science to tell whether we should use a weapon or clone an animal? Explain.
2)What are the levels of Scientific Knowledge from the Lowest to the Highest?
3)What are the 5 steps of the scientific method ? Explain what EACH one is.
4)What was one of the real examples of the scientific method we covered in class? (hint: spider, comet)
5)Why do we call the metric system the “SI” system in Science?
6)The Metric System is based on the meter and what other thing? Why does that make metric easier to understand?
7)What are 3 base units we use for Length, Volume, and Mass? How do you represent them with initials? Which one is capitalized?
8)
25 km = cm
800mg = g
12500 mL = L
358mm = m
76kg = g
20L = ml
9)Metric is based on universal constants (things you can measure) rather than examples (a person’s hand or food or a grain of rice). Why is this a good thing? Why is it important for Science too?
10)What did these folks do wrong?
Belinda and Suzy are working with Bob in the lab today. They decide to play a trick on him. They tell him that even though it isn’t written down, the teacher said that when they are done with today’s experiment, they should drink the solution because it tastes just like Dr.Pepper. Bob believes them (Belinda is very cute, after all) and makes a moveto pick up his still steaming beaker. Name at least two things that these three should improve on.
An
A continuación, se explicará la incidencia que este recurso formal tiene en el significado completo del poema.
What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s? (1 point)
A. 1.0
B. 1.5
C. 5.0
D. 6.0
Answer:
DExplanation:
The momentum of an object can be found by using the formula
momentum = mass × velocity
From the question
mass = 2 kg
velocity/speed = 3 m/s
We have
momentum = 2 × 3 = 6
We have the final answer as
6 kg.m/sHope this helps you
Answer:
(Question) Which of these quantities is a vector?
(Answer) momentum
(Question) What is the representation of the momentum vector?
(Answer) an arrow
(Question) What is the formula for the momentum p?
(Answer) p=m⋅v
(Question) What happens to the total momentum in a system of two interacting objects when a net force is exerted upon the system?
(Answer) The total momentum is conserved.
(Question) What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s?
(Answer) 6.0
Explanation:
just finished the quick check UwU
ayudenme pls es urgente es nota del cohorte
Answer:
500m
Explanation:
because 250+250 goood
5 Which of the following is a scalar quantity? a. the braking force needed to stop a car b. the effort needed to hammer a nail into wood c. the heat needed to boil some water Ans FOR d. the thrust needed to lift a rocket off the ground
Answer:
C) the heat needed to boil some water
Explanation:
Can someone please help
Answer:
55 km
pls give brainliest hope it help
Explanation:
calculate the currrent passing acrooss a bulb if it has a resistane of 15 ohms and a potentinal difference of 6v is applied across it
V = IR
6 V = I × 15 Ohms
I = 6 V : 15 Ohms
I = 0,4 A
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HELP ME PLEASE????????????????????????????????
I NEED A 100% ACCURATE ANSWER FOR THIS QUESTION ASAP NO LINKS !!!
Answer:
B
Explanation:
La aceleración de un proyectil que describe una trayectoria parabólica cerca de la superficie terrestre es constante o variable
Answer:
Es una constante porque sigue funcionando y debido a la gravedad, tú tendrías que ser tú quien la detenga si está bajando en lugar de hacia arriba.
Explanation:
Which term, when divided by volume, equals density?
1: distance
2: weight
3: power
4: mass
Explanation:
mass
4
4
4
4
mass
mass
mass
4
4
4
4
4
A soccer ball is kicked 8 m north. Then a teammate kicks it 6 m east into the goal. What is the soccer ball’s displacement from where it was first kicked?
10 m northeast
14 m northeast
100 m northeast
4 m southeast
Answer:
Displacement=10 meters
Explanation:
The displacement is the direct path from the first contact with the ball and the last spot it was seen in. The ball was kicked north 8 meters, meaning it was kicked vertically upward, and then it was kicked east 6 meters, or to the right. If we were to draw the displacement we would see that this is a right triangle. That means we can use the Pythagorean Theorem:
[tex]a^2+b^2=c^2\\8^2+6^2=c^2\\64+36=c^2\\c^2=100\\\sqrt{c} =\sqrt{100} \\c=10[/tex]
Boom.
The displacement is 10 m toward the northeast. The first option is correct.
The displacement is a vector quantity having both magnitude and direction. It is equal to the path length between the initial and final positions.
Given:
North displacement, y=8 m
East displacement, x= 6 m
The net displacement is calculated using Pythagoras' theorem as the displacements are perpendicular to each other.
The displacement is given by:
d=√(x²+y²)
d=√(8²+6²)
d=10 m
So, the displacement is 10 m.
Therefore, the displacement is 10 m toward the northeast. The first option is correct.
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A student is given a red and a blue liquid. The two samples of liquids are
heated in identical beakers over identical Bunsen burners. The red liquid
shows a dramatically faster increase in temperature. Which of these is the
most likely explanation for this? *
O A) The red liquid has a greater mass.
O B) The blue liquid has a smaller mass.
O C) The red liquid has a greater specific heat.
OD) The red liquid has a smaller specific heat
When a substance has smaller specific heat it needs less heat to shows changes in it hence making the option D correct.
Answer:
option D) the red liquid has a smaller specific heat
Explanation:
what type of light on the electromagnetic spectrum has the lowest energy per photon?
Explanation:
oh wait you ask what type of light on the electricity as the lowest energy per photo so is like taking a photo yet to be like make up your mind
what is the first invention that humans created to look at the stars?
Answer:
telescope
Explanation:
| AMNH. Before telescopes were invented, people gazed at the night sky with amazement and dreamed of a closer look. The invention of the telescope in 1608 gave humans their chance to explore the vastness of the Universe.
Answer:
The invention of the telescope
PLS MARK BRAINLIEST
11. A roller coaster car is moving slowly up a long ramp to the very top of the roller coaster. It goes over the top and starts down a steep slope and it picks up speed rapidly as it rolls down an almost vertical slope. Four seconds later, at the bottom of the steep slope, its velocity is 28 m/s. The average acceleration during those 4 seconds was 6 m/s2 . What was the initial velocity of the roller coaster car as it started down the slope?
Answer:
a = (v2 - v1) / t
a t = v2 - v1
v1 = v2 - a t
v1 = 28 m/s - 6 m/s^2 * 4 s = 4 m/s
Another name for the arrows in a free-body diagram is calling it a
Answer:
the free body diagram models the forces acting on an object. The object or 'body' is usually shown as a box or a dot. The forces are shown as thin arrows pointing away from the centre of the box or dot. ... It is important to label each arrow to show the magnitude of the force it represents.
3. A block is pushed with 30N of force this changes the velocity from 20m/s to
30m/s, after 2 seconds. What is the mass?
let's find the acceleration first :
[tex] \boxed{a = \frac{v - u}{t} }[/tex][tex]a = \dfrac{30 - 20}{2} [/tex][tex]a = \dfrac{10}{2} [/tex][tex]a = 5 \: \: ms {}^{ - 2} [/tex]now, we know that :
[tex]f orce= mass \times acceleration[/tex][tex]30 = m \times 5[/tex][tex]m = \dfrac{30}{5} [/tex][tex]m = 6 \: \: kg[/tex]hence, mass = 6kg
the energy carried by sound waves is called -
Answer:
kinetic mechanical energy
Answer:
Those sound waves are called kinetic mechanical energy
Explanation:
Sound energy is the result when a force, either sound or pressure, makes an object or substance vibrate. That energy moves through the substance in waves. Those sound waves are called kinetic mechanical energy.
Why do patterns of earthquakes become deeper the farther the distance from a plate boundary?
Answer:
The result is that epicentres of earthquakes farther to the interior of the overriding plate will correspond to increasingly deep earthquakes.
CR(OH)3+HCIO4>CR(CIO4)+H2O
Answer:
Cr(OH)3 + 3 HCLO4 → Cr(CLO4)3 + 3H2O
Stoichiometry balancing +